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Analysis Report yLrbaQWAY.dll

Overview

General Information

Joe Sandbox Version:25.0.0 Tiger's Eye
Analysis ID:124154
Start date:18.04.2019
Start time:17:53:21
Joe Sandbox Product:CloudBasic
Overall analysis duration:0h 3m 28s
Hypervisor based Inspection enabled:false
Report type:full
Sample file name:yLrbaQWAY.dll
Cookbook file name:default.jbs
Analysis system description:Windows 10 64 bit (version 1803) with Office 2016, Adobe Reader DC 19, Chrome 70, Firefox 63, Java 8.171, Flash 30.0.0.113
Number of analysed new started processes analysed:30
Number of new started drivers analysed:0
Number of existing processes analysed:0
Number of existing drivers analysed:0
Number of injected processes analysed:0
Technologies
  • HCA enabled
  • EGA enabled
  • HDC enabled
Analysis stop reason:Timeout
Detection:MAL
Classification:mal48.winDLL@43/8@0/0
EGA Information:Failed
HDC Information:Failed
HCA Information:
  • Successful, ratio: 100%
  • Number of executed functions: 0
  • Number of non-executed functions: 0
Cookbook Comments:
  • Adjust boot time
  • Enable AMSI
  • Found application associated with file extension: .dll
  • Stop behavior analysis, all processes terminated
Warnings:
Show All
  • Exclude process from analysis (whitelisted): dllhost.exe, WerFault.exe, wermgr.exe, conhost.exe, CompatTelRunner.exe
  • Skipping Hybrid Code Analysis (implementation is based on Java, .Net, VB or Delphi, or parses a document) for: rundll32.exe, rundll32.exe, rundll32.exe, rundll32.exe, rundll32.exe, rundll32.exe, rundll32.exe, rundll32.exe, rundll32.exe, rundll32.exe, rundll32.exe, rundll32.exe, rundll32.exe, rundll32.exe, rundll32.exe, rundll32.exe, rundll32.exe, rundll32.exe, rundll32.exe, rundll32.exe

Detection

StrategyScoreRangeReportingWhitelistedDetection
Threshold480 - 100falsemalicious

Confidence

StrategyScoreRangeFurther Analysis Required?Confidence
Threshold50 - 5false
ConfidenceConfidence


Classification

Analysis Advice

Sample tries to load a library which is not present or installed on the analysis machine, adding the library might reveal more behavior



Mitre Att&ck Matrix

Initial AccessExecutionPersistencePrivilege EscalationDefense EvasionCredential AccessDiscoveryLateral MovementCollectionExfiltrationCommand and Control
Valid AccountsWindows Remote ManagementWinlogon Helper DLLProcess Injection11Process Injection11Credential DumpingProcess Discovery1Application Deployment SoftwareData from Local SystemData CompressedData Obfuscation
Replication Through Removable MediaService ExecutionPort MonitorsAccessibility FeaturesObfuscated Files or Information1Network SniffingSecurity Software Discovery2Remote ServicesData from Removable MediaExfiltration Over Other Network MediumFallback Channels
Drive-by CompromiseWindows Management InstrumentationAccessibility FeaturesPath InterceptionRootkitInput CaptureSystem Information Discovery1Windows Remote ManagementData from Network Shared DriveAutomated ExfiltrationCustom Cryptographic Protocol

Signature Overview

Click to jump to signature section


AV Detection:

barindex
Multi AV Scanner detection for submitted fileShow sources
Source: yLrbaQWAY.dllvirustotal: Detection: 11%Perma Link

System Summary:

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Creates files inside the system directoryShow sources
Source: C:\Windows\SysWOW64\WerFault.exeFile created: C:\Windows\AppCompat\Programs\Amcache.hve.tmpJump to behavior
Creates mutexesShow sources
Source: C:\Windows\SysWOW64\WerFault.exeMutant created: \Sessions\1\BaseNamedObjects\Local\WERReportingForProcess4960
Source: C:\Windows\SysWOW64\WerFault.exeMutant created: \Sessions\1\BaseNamedObjects\Local\WERReportingForProcess968
One or more processes crashShow sources
Source: unknownProcess created: C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\WerFault.exe -u -p 4960 -s 660
Tries to load missing DLLsShow sources
Source: C:\Windows\SysWOW64\loaddll32.exeSection loaded: wow64log.dllJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeSection loaded: wow64log.dllJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeSection loaded: wow64log.dllJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeSection loaded: wow64log.dllJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeSection loaded: wow64log.dllJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeSection loaded: phoneinfo.dllJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeSection loaded: ext-ms-win-xblauth-console-l1.dllJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeSection loaded: wow64log.dllJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeSection loaded: wow64log.dllJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeSection loaded: wow64log.dllJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeSection loaded: wow64log.dllJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeSection loaded: wow64log.dllJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeSection loaded: wow64log.dllJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeSection loaded: wow64log.dllJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeSection loaded: wow64log.dllJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeSection loaded: wow64log.dllJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeSection loaded: wow64log.dllJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeSection loaded: wow64log.dllJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeSection loaded: wow64log.dllJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeSection loaded: wow64log.dllJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeSection loaded: wow64log.dllJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeSection loaded: wow64log.dllJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeSection loaded: wow64log.dllJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeSection loaded: phoneinfo.dllJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeSection loaded: ext-ms-win-xblauth-console-l1.dllJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeSection loaded: wow64log.dllJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeSection loaded: wow64log.dllJump to behavior
Classification labelShow sources
Source: classification engineClassification label: mal48.winDLL@43/8@0/0
Creates temporary filesShow sources
Source: C:\Windows\SysWOW64\WerFault.exeFile created: C:\ProgramData\Microsoft\Windows\WER\Temp\WER98C3.tmpJump to behavior
Parts of this applications are using Borland Delphi (Probably coded in Delphi)Show sources
Source: C:\Windows\SysWOW64\rundll32.exeKey opened: HKEY_CURRENT_USER\Software\Borland\Delphi\LocalesJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeKey opened: HKEY_CURRENT_USER\Software\Borland\Delphi\LocalesJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeKey opened: HKEY_CURRENT_USER\Software\Borland\Delphi\LocalesJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeKey opened: HKEY_CURRENT_USER\Software\Borland\Delphi\LocalesJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeKey opened: HKEY_CURRENT_USER\Software\Borland\Delphi\LocalesJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeKey opened: HKEY_CURRENT_USER\Software\Borland\Delphi\LocalesJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeKey opened: HKEY_CURRENT_USER\Software\Borland\Delphi\LocalesJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeKey opened: HKEY_CURRENT_USER\Software\Borland\Delphi\LocalesJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeKey opened: HKEY_CURRENT_USER\Software\Borland\Delphi\LocalesJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeKey opened: HKEY_CURRENT_USER\Software\Borland\Delphi\LocalesJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeKey opened: HKEY_CURRENT_USER\Software\Borland\Delphi\LocalesJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeKey opened: HKEY_CURRENT_USER\Software\Borland\Delphi\LocalesJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeKey opened: HKEY_CURRENT_USER\Software\Borland\Delphi\LocalesJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeKey opened: HKEY_CURRENT_USER\Software\Borland\Delphi\LocalesJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeKey opened: HKEY_CURRENT_USER\Software\Borland\Delphi\LocalesJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeKey opened: HKEY_CURRENT_USER\Software\Borland\Delphi\LocalesJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeKey opened: HKEY_CURRENT_USER\Software\Borland\Delphi\LocalesJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeKey opened: HKEY_CURRENT_USER\Software\Borland\Delphi\LocalesJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeKey opened: HKEY_CURRENT_USER\Software\Borland\Delphi\LocalesJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeKey opened: HKEY_CURRENT_USER\Software\Borland\Delphi\LocalesJump to behavior
Reads software policiesShow sources
Source: C:\Windows\SysWOW64\loaddll32.exeKey opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiersJump to behavior
Runs a DLL by calling functionsShow sources
Source: unknownProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,Bemefonato
Sample is known by AntivirusShow sources
Source: yLrbaQWAY.dllvirustotal: Detection: 11%
Spawns processesShow sources
Source: unknownProcess created: C:\Windows\SysWOW64\loaddll32.exe loaddll32.exe 'C:\Users\user\Desktop\yLrbaQWAY.dll'
Source: unknownProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,Bemefonato
Source: unknownProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,Celemepap
Source: unknownProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,Cotataha
Source: unknownProcess created: C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\WerFault.exe -u -p 4960 -s 660
Source: unknownProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,Detepi
Source: unknownProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,Domahotelel
Source: unknownProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,Fonutikefape
Source: unknownProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,Gagerumofogec
Source: unknownProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,Genucelu
Source: unknownProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,Gufohifudidi
Source: unknownProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,Gupubede
Source: unknownProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,Hadir
Source: unknownProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,Hamutanerero
Source: unknownProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,Hoginah
Source: unknownProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,Holonocod
Source: unknownProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,Kopitakarepi
Source: unknownProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,Medefofipa
Source: unknownProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,Mehubogekasu
Source: unknownProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,Meloset
Source: unknownProcess created: C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\WerFault.exe -u -p 968 -s 660
Source: unknownProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,Modefedopi
Source: unknownProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,Notid
Source: C:\Windows\SysWOW64\loaddll32.exeProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,BemefonatoJump to behavior
Source: C:\Windows\SysWOW64\loaddll32.exeProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,CelemepapJump to behavior
Source: C:\Windows\SysWOW64\loaddll32.exeProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,CotatahaJump to behavior
Source: C:\Windows\SysWOW64\loaddll32.exeProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,DetepiJump to behavior
Source: C:\Windows\SysWOW64\loaddll32.exeProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,DomahotelelJump to behavior
Source: C:\Windows\SysWOW64\loaddll32.exeProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,FonutikefapeJump to behavior
Source: C:\Windows\SysWOW64\loaddll32.exeProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,GagerumofogecJump to behavior
Source: C:\Windows\SysWOW64\loaddll32.exeProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,GenuceluJump to behavior
Source: C:\Windows\SysWOW64\loaddll32.exeProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,GufohifudidiJump to behavior
Source: C:\Windows\SysWOW64\loaddll32.exeProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,GupubedeJump to behavior
Source: C:\Windows\SysWOW64\loaddll32.exeProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,HadirJump to behavior
Source: C:\Windows\SysWOW64\loaddll32.exeProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,HamutanereroJump to behavior
Source: C:\Windows\SysWOW64\loaddll32.exeProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,HoginahJump to behavior
Source: C:\Windows\SysWOW64\loaddll32.exeProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,HolonocodJump to behavior
Source: C:\Windows\SysWOW64\loaddll32.exeProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,KopitakarepiJump to behavior
Source: C:\Windows\SysWOW64\loaddll32.exeProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,MedefofipaJump to behavior
Source: C:\Windows\SysWOW64\loaddll32.exeProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,MehubogekasuJump to behavior
Source: C:\Windows\SysWOW64\loaddll32.exeProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,MelosetJump to behavior
Source: C:\Windows\SysWOW64\loaddll32.exeProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,ModefedopiJump to behavior
Source: C:\Windows\SysWOW64\loaddll32.exeProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,NotidJump to behavior

Data Obfuscation:

barindex
Binary may include packed or encrypted codeShow sources
Source: initial sampleStatic PE information: section name: CODE entropy: 7.94255058532

Hooking and other Techniques for Hiding and Protection:

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Disables application error messsages (SetErrorMode)Show sources
Source: C:\Windows\SysWOW64\rundll32.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeProcess information set: FAILCRITICALERRORS | NOGPFAULTERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeProcess information set: FAILCRITICALERRORS | NOGPFAULTERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeProcess information set: NOOPENFILEERRORBOXJump to behavior

Malware Analysis System Evasion:

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May sleep (evasive loops) to hinder dynamic analysisShow sources
Source: C:\Windows\SysWOW64\loaddll32.exe TID: 984Thread sleep time: -60000s >= -30000sJump to behavior
Queries disk information (often used to detect virtual machines)Show sources
Source: C:\Windows\SysWOW64\WerFault.exeFile opened: PhysicalDrive0Jump to behavior
Queries a list of all running processesShow sources
Source: C:\Windows\SysWOW64\WerFault.exeProcess information queried: ProcessInformationJump to behavior

Anti Debugging:

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Checks for debuggers (devices)Show sources
Source: C:\Windows\SysWOW64\WerFault.exeFile opened: C:\Windows\WinSxS\FileMaps\$$_syswow64_21ffbdd2a2dd92e0.cdf-ms
Checks if the current process is being debuggedShow sources
Source: C:\Windows\SysWOW64\rundll32.exeProcess queried: DebugPortJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeProcess queried: DebugPortJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeProcess queried: DebugPortJump to behavior
Source: C:\Windows\SysWOW64\rundll32.exeProcess queried: DebugPortJump to behavior
Enables debug privilegesShow sources
Source: C:\Windows\SysWOW64\WerFault.exeProcess token adjusted: DebugJump to behavior
Source: C:\Windows\SysWOW64\WerFault.exeProcess token adjusted: DebugJump to behavior

HIPS / PFW / Operating System Protection Evasion:

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Creates a process in suspended mode (likely to inject code)Show sources
Source: C:\Windows\SysWOW64\loaddll32.exeProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,BemefonatoJump to behavior
Source: C:\Windows\SysWOW64\loaddll32.exeProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,CelemepapJump to behavior
Source: C:\Windows\SysWOW64\loaddll32.exeProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,CotatahaJump to behavior
Source: C:\Windows\SysWOW64\loaddll32.exeProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,DetepiJump to behavior
Source: C:\Windows\SysWOW64\loaddll32.exeProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,DomahotelelJump to behavior
Source: C:\Windows\SysWOW64\loaddll32.exeProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,FonutikefapeJump to behavior
Source: C:\Windows\SysWOW64\loaddll32.exeProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,GagerumofogecJump to behavior
Source: C:\Windows\SysWOW64\loaddll32.exeProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,GenuceluJump to behavior
Source: C:\Windows\SysWOW64\loaddll32.exeProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,GufohifudidiJump to behavior
Source: C:\Windows\SysWOW64\loaddll32.exeProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,GupubedeJump to behavior
Source: C:\Windows\SysWOW64\loaddll32.exeProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,HadirJump to behavior
Source: C:\Windows\SysWOW64\loaddll32.exeProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,HamutanereroJump to behavior
Source: C:\Windows\SysWOW64\loaddll32.exeProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,HoginahJump to behavior
Source: C:\Windows\SysWOW64\loaddll32.exeProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,HolonocodJump to behavior
Source: C:\Windows\SysWOW64\loaddll32.exeProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,KopitakarepiJump to behavior
Source: C:\Windows\SysWOW64\loaddll32.exeProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,MedefofipaJump to behavior
Source: C:\Windows\SysWOW64\loaddll32.exeProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,MehubogekasuJump to behavior
Source: C:\Windows\SysWOW64\loaddll32.exeProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,MelosetJump to behavior
Source: C:\Windows\SysWOW64\loaddll32.exeProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,ModefedopiJump to behavior
Source: C:\Windows\SysWOW64\loaddll32.exeProcess created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\yLrbaQWAY.dll,NotidJump to behavior
May try to detect the Windows Explorer process (often used for injection)Show sources
Source: rundll32.exe, 00000004.00000000.4970768183.00000000030C0000.00000002.sdmp, rundll32.exe, 00000018.00000000.5433890649.00000000032D0000.00000002.sdmpBinary or memory string: Shell_TrayWnd
Source: rundll32.exe, 00000004.00000000.4970768183.00000000030C0000.00000002.sdmp, rundll32.exe, 00000018.00000000.5433890649.00000000032D0000.00000002.sdmpBinary or memory string: Progman
Source: rundll32.exe, 00000004.00000000.4970768183.00000000030C0000.00000002.sdmp, rundll32.exe, 00000018.00000000.5433890649.00000000032D0000.00000002.sdmpBinary or memory string: Program ManagerUR

Behavior Graph

Hide Legend

Legend:

  • Process
  • Signature
  • Created File
  • DNS/IP Info
  • Is Dropped
  • Is Windows Process
  • Number of created Registry Values
  • Number of created Files
  • Visual Basic
  • Delphi
  • Java
  • .Net C# or VB.NET
  • C, C++ or other language
  • Is malicious
  • Internet
behaviorgraph top1 signatures2 2 Behavior Graph ID: 124154 Sample: yLrbaQWAY.dll Startdate: 18/04/2019 Architecture: WINDOWS Score: 48 21 Multi AV Scanner detection for submitted file 2->21 7 loaddll32.exe 1 2->7         started        process3 process4 9 rundll32.exe 7->9         started        11 rundll32.exe 7->11         started        13 rundll32.exe 7->13         started        15 17 other processes 7->15 process5 17 WerFault.exe 25 10 9->17         started        19 WerFault.exe 9 11->19         started       

Simulations

Behavior and APIs

TimeTypeDescription
17:54:12API Interceptor2x Sleep call for process: loaddll32.exe modified

Antivirus and Machine Learning Detection

Initial Sample

SourceDetectionScannerLabelLink
yLrbaQWAY.dll12%virustotalBrowse
yLrbaQWAY.dll3%metadefenderBrowse

Dropped Files

No Antivirus matches

Unpacked PE Files

SourceDetectionScannerLabelLinkDownload
4.2.rundll32.exe.400000.0.unpack100%AviraHEUR/AGEN.1037241Download File
4.0.rundll32.exe.400000.0.unpack100%AviraHEUR/AGEN.1037241Download File
24.0.rundll32.exe.400000.0.unpack100%AviraHEUR/AGEN.1037241Download File
24.2.rundll32.exe.400000.0.unpack100%AviraHEUR/AGEN.1037241Download File
4.1.rundll32.exe.400000.0.unpack100%AviraHEUR/AGEN.1037241Download File
24.0.rundll32.exe.400000.2.unpack100%AviraHEUR/AGEN.1037241Download File
24.1.rundll32.exe.400000.0.unpack100%AviraHEUR/AGEN.1037241Download File
4.0.rundll32.exe.400000.2.unpack100%AviraHEUR/AGEN.1037241Download File

Domains

No Antivirus matches

URLs

No Antivirus matches

Yara Overview

Initial Sample

No yara matches

PCAP (Network Traffic)

No yara matches

Dropped Files

No yara matches

Memory Dumps

No yara matches

Unpacked PEs

No yara matches

Joe Sandbox View / Context

IPs

No context

Domains

No context

ASN

No context

JA3 Fingerprints

No context

Dropped Files

No context

Screenshots

Thumbnails

This section contains all screenshots as thumbnails, including those not shown in the slideshow.